Our target article (Robinson-Cimpian, Lubienski, Ganley, & Copur-Gencturk, 2014) used nationally representative data to examine the development of gender gaps in math achievement. We found that when boys and girls demonstrate equivalent math test performance and are perceived by their teachers to be equally well behaved and engaged with the…

Argues that more attention should be given to the specification of the independent and dependent variables which describe, explain and predict intraindividual stability and change over time. Statistical techniques for such study are briefly discussed. (Author/SDH)

Examines issues related to the design and interpretation of high-risk depression research, including the identification of symptoms and syndromes, categorical versus dimensional scales, aspects of depression to be considered, specificity of effects, use of process measures, and conceptualization of risk and resilience. (MDM)

Discusses procedures and considerations involved with secondary analyses of longitudinal databases. Procedures involve (1) formulating questions; (2) creating a feasibility matrix; (3) reformulating questions; (4) creating derived variables; (5) performing data reduction; (6) analyzing data; and (7) interpreting results. Problems associated with…

Considers assumptions underlying design of Bussell et al.'s Nonshared Environment in Adolescent Development study. Suggests that a source of the common environment specific to this study is the effect of an individual in mutual ratings of relationship with siblings, leading to a larger common-environment effect across variables than within…

Addresses concerns raised in Neale's commentary regarding the Bussell et al. (1999) Nonshared Environment in Adolescent Development study. Discussion of assumptions focuses on those most relevant to study sample. Because Neale's proposed alternative models did not provide a better fit, the appropriateness of Bussell's model and importance of…